Adopt use of gnulib for portability.

[pspp-builds.git] / src / t-test.q

diff --git a/src/t-test.q b/src/t-test.q
index 4d58206d083e3f24151be5795dc09b0c94ccb45a..07bcdd07f0db51c351df8b88c3e15e7bf9aa4bce 100644 (file)
--- a/src/t-test.q
+++ b/src/t-test.q
@@ -16,8 +16,8 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA. */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA. */
 
 #include <config.h>
 #include <gsl/gsl_cdf.h>
@@ -43,6 +43,10 @@
 #include "group_proc.h"
 #include "casefile.h"
 #include "levene.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
 /* (headers) */
 
 /* (specification)
@@ -224,9 +228,6 @@ static int  group_calc (const struct ccase *, struct cmd_t_test *);
 static void group_postcalc (struct cmd_t_test *);
 
 
-static int compare_var_name (const void *a_, const void *b_, void *v_ UNUSED);
-static unsigned hash_var_name (const void *a_, void *v_ UNUSED);
-
 static void calculate(const struct casefile *cf, void *_mode);
 
 static  int mode;
@@ -297,7 +298,7 @@ cmd_t_test(void)
          struct hsh_table *hash;
          struct variable *v;
 
-         hash=hsh_create(n_pairs,compare_var_name,hash_var_name,0,0);
+         hash = hsh_create (n_pairs, compare_var_names, hash_var_name, 0, 0);
 
          for (i=0; i < n_pairs; ++i)
            {
@@ -363,14 +364,6 @@ tts_custom_groups (struct cmd_t_test *cmd UNUSED)
 
   lex_match('=');
 
-  if (token != T_ALL && 
-      (token != T_ID || dict_lookup_var (default_dict, tokid) == NULL)
-     ) 
-  {
-    msg(SE,_("`%s' is not a variable name"),tokid);
-    return 0;
-  }
-
   indep_var = parse_variable ();
   if (!indep_var)
     {
@@ -456,13 +449,6 @@ tts_custom_pairs (struct cmd_t_test *cmd UNUSED)
 
   lex_match('=');
 
-  if ((token != T_ID || dict_lookup_var (default_dict, tokid) == NULL)
-      && token != T_ALL)
-    {
-      msg(SE,_("`%s' is not a variable name"),tokid);
-      return 0;
-    }
-
   n_vars=0;
   if (!parse_variables (default_dict, &vars, &n_vars,
                        PV_DUPLICATE | PV_NUMERIC | PV_NO_SCRATCH))
@@ -1585,25 +1571,6 @@ one_sample_postcalc (struct cmd_t_test *cmd)
 
 
 
-static int
-compare_var_name (const void *a_, const void *b_, void *v_ UNUSED)
-{
-  const struct variable *a = a_;
-  const struct variable *b = b_;
-
-  return strcmp(a->name,b->name);
-}
-
-static unsigned
-hash_var_name (const void *a_, void *v_ UNUSED)
-{
-  const struct variable *a = a_;
-
-  return hsh_hash_bytes (a->name, strlen(a->name));
-}
-
-
-
 static void 
 paired_precalc (struct cmd_t_test *cmd UNUSED)
 {
@@ -1939,6 +1906,8 @@ calculate(const struct casefile *cf, void *cmd_)
 
 }
 
+short which_group(const struct group_statistics *g,
+                 const struct group_properties *p);
 
 /* Return -1 if the id of a is less than b; +1 if greater than and 
    0 if equal */
@@ -1947,26 +1916,28 @@ compare_group_binary(const struct group_statistics *a,
                     const struct group_statistics *b, 
                     const struct group_properties *p)
 {
-  
   short flag_a;
   short flag_b;
-
+  
   if ( p->criterion == CMP_LE ) 
     {
+      /* less-than-or-equal comparision is not meaningfull for
+        alpha variables, so we shouldn't ever arrive here */
       assert(p->indep_width == 0 ) ;
+      
       flag_a = ( a->id.f < p->v.critical_value ) ;
       flag_b = ( b->id.f < p->v.critical_value ) ;
     }
   else
     {
-      flag_a = ( a->id.f == p->v.critical_value ) ;
-      flag_b = ( b->id.f == p->v.critical_value ) ;
+      flag_a = which_group(a, p);
+      flag_b = which_group(b, p);
     }
 
-  if ( flag_a == flag_b) 
-    return 0 ;
-  
-  return ( flag_a < flag_b);
+  if (flag_a < flag_b ) 
+    return -1;
+
+  return (flag_a > flag_b);
 }
 
 /* This is a degenerate case of a hash, since it can only return three possible
@@ -1986,15 +1957,28 @@ hash_group_binary(const struct group_statistics *g,
     }
   else if ( p->criterion == CMP_EQ) 
     {
-      if ( 0 == compare_values (&g->id, &p->v.g_value[0], p->indep_width ))
-       flag = 0 ;
-      else if ( 0 == compare_values (&g->id, &p->v.g_value[1], p->indep_width ))
-       flag = 1 ;
-      else
-       flag = 2 ;
+      flag = which_group(g,p);
     }
   else
     assert(0);
 
   return flag;
 }
+
+/* return 0 if G belongs to group 0, 
+          1 if it belongs to group 1,
+         2 if it belongs to neither group */
+short
+which_group(const struct group_statistics *g,
+           const struct group_properties *p)
+{
+ 
+  if ( 0 == compare_values (&g->id, &p->v.g_value[0], p->indep_width))
+    return 0;
+
+  if ( 0 == compare_values (&g->id, &p->v.g_value[1], p->indep_width))
+    return 1;
+
+  return 2;
+}
+